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Onchocerciasis Community Ivermectin Control Evaluation Jos-east.
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Evaluation of the control of onchocerciasis through community-directed treatment with ivermectin (cdti) in selected villages of Jos east local government area, Plateau State
Abstract
Community Directed mass ivermectin® treatment (CDTI) programme of the National Onchocerciasis control was evaluated in five randomly selected villages in Jos East Local Government Area by clinical and parasitological
methods. Oral interview using structured questionnaire was used to asses awareness and level of drug compliance. A total of 452 persons from the study area were selected by stratified random sampling for clinical and parasitological evaluation. An overall prevalence of 15.7% was observed using both clinical and parasitological assessment. Clinically, 30 (5.5%); 32 (5.9%); 4 (0.7%) and 3 (0.6%) persons were manifesting leopard skin, nodules, hanging groin and elephantiasis lesions respectively. Parasitological examination by skin biopsy revealed that only 2 (0.4%) persons were positive for microfilaria of Onchocerca volvolus, which is an indication of a decrease in active cases among the population. All the positive cases confessed non compliance with drug use. Generally there appears to be a remarkable decrease in the prevalence of Onchocerciasis in the study area compared to earlier report of 27.9% in the 1980’s. This could be attributed to efficacy of ivermectin and increased awareness among the general public of the need on compliance with the drug. Concerted and coordinated mass enlightenment should be sustained to eradicate the pockets of active cases to eliminate all possible sources of infection.
methods. Oral interview using structured questionnaire was used to asses awareness and level of drug compliance. A total of 452 persons from the study area were selected by stratified random sampling for clinical and parasitological evaluation. An overall prevalence of 15.7% was observed using both clinical and parasitological assessment. Clinically, 30 (5.5%); 32 (5.9%); 4 (0.7%) and 3 (0.6%) persons were manifesting leopard skin, nodules, hanging groin and elephantiasis lesions respectively. Parasitological examination by skin biopsy revealed that only 2 (0.4%) persons were positive for microfilaria of Onchocerca volvolus, which is an indication of a decrease in active cases among the population. All the positive cases confessed non compliance with drug use. Generally there appears to be a remarkable decrease in the prevalence of Onchocerciasis in the study area compared to earlier report of 27.9% in the 1980’s. This could be attributed to efficacy of ivermectin and increased awareness among the general public of the need on compliance with the drug. Concerted and coordinated mass enlightenment should be sustained to eradicate the pockets of active cases to eliminate all possible sources of infection.
